hauppauge wintv-dual hd - only see one tuner

**edit4ever** · June 16, 2017 at 10:53 PM

Unfortunately the patches haven't been worked into linux mainstream kernel yet. The good news is hauppauge has finally started contributing to getting it working.

If you're planning to compile a build, you could try to take the 5 patches from here: Ubuntu-media-tree-kernel-builder/patches/ubuntu-zesty-4.10.0/extra at master · b-rad-NDi/Ubuntu-media-tree-kernel-builder · GitHub and see if they work in the rpi build. Place them in your http://libreelec.tv/projects/rpi2/patches/linux folder.

I'm guessing more will need to be changed than just those to make it work - but that's the test I would try -- I just don't have a build environment setup for rpi right now. Hopefully someone here ( crazycat ) will be able to provide more insight.

~~-- P.S. Happy to test a build if you compile it!~~

I'm actually going to try to compile it this way tonight and see what happens. Nothing like messing around in order to learn!

woodenduck · June 17, 2017 at 1:54 AM

Thanks! I pulled a clone of the master branch myself. I'll try to compile the master with the patches you linked to.

woodenduck · June 17, 2017 at 2:26 AM

Is this supposed to be compiled with c90? The standard compile didn't work due to lack of inclusion of stddef.h for size_t

leading_edjge · June 17, 2017 at 3:00 AM

I was able to build the patches for two tuners.

I extracted the one patch file 0001-em28xx-Hauppauge-DualHD-DVB-ATSC-second-tuner-suppor.patch from Ubuntu-media-tree-kernel-builder/patches/ubuntu-zesty-4.10.0/extra at master · b-rad-NDi/Ubuntu-media-tree-kernel-builder · GitHub

I had trouble applying the patch with Linux Kernel 4.9 and Linux Kernel 4.10.

I was successful in applying the patch with Linux Kernel 4.11.

I built the patch with Linux Kernel 4.11 using these instructions: Kernel building - Raspberry Pi Documentation

I did not use the LibreElec instructions to compile for my two tuners. I apologize in advance for any bogus suggestion.

Compile - LibreELEC

Would this command work to build Linux Kernel 4.11?

Raspberry Pi 2 or 3 (for master branch):

Code

PROJECT=RPi DEVICE=RPi2 ARCH=arm LINUX_VERSION=4.11

and put the patch file of 0001-em28xx-Hauppauge-DualHD-DVB-ATSC-second-tuner-suppor.patch into projects/RPi2/patches/linux/

Then perform the compilation of the Linux Kernel 4.11 with the patch and create a new image for your Raspberry Pi 3.

**edit4ever** · June 17, 2017 at 2:54 PM

leading_edjge - did you modify the patch at all? If so can you please share your modifications?

I compiled the latest Leia Rpi2/3 build last night (which includes kernel 4.11.5) with all 5 of the patches and I can still only see 1 front end. Perhaps adding the other 4 patches messed something else up?

**CvH** · June 17, 2017 at 3:55 PM Official Post

if you have something what works pls ping me to include it in official rls, tx

leading_edjge · June 17, 2017 at 4:05 PM

No. I did not modify the 0001-em28xx-Hauppauge-DualHD-DVB-ATSC-second-tuner-suppor.patch.

I used Kernel 4.11.3 only with above patch. I used these instruction to get both my tuners working. I did not want to use the Kernel release candidate 4.12, and I found that Kernel 4.11.3 worked fine.

Code

On 2017-05-27 10:38, Christian Steiner wrote:
> Hello,
>
> I have found patches that add support for the second tuner:
> https://github.com/b-rad-NDi/Ubuntu-media-tree-kernel-builder/tree/master/patches/ubuntu-zesty-4.10.0/extra
>
> I can confirm that they also work with the latest kernel (4.12.0-rc2).
> Would it be possible to integrate these patches into mainline?
> Applying 0006-Hauppauge-WinTV-DualHD-DVB-ATSC-second-tuner-support.patch
> is sufficient for the second tuner to appear, but I guess we should
> include all patches.
>
> Best regards,
> Christian

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Re: Fwd: [PATCH] em28xx: add support for Hauppauge WinTV-dualHD DVB tuner — Linux media

**edit4ever** · June 17, 2017 at 4:14 PM

Which version of LE are you running?

leading_edjge · June 17, 2017 at 4:14 PM

Quote from CvH

if you have something what works pls ping me to include it in official rls, tx

How about putting in the kernel 4.11.x with the patch 0001-em28xx-Hauppauge-DualHD-DVB-ATSC-second-tuner-suppor.patch from Ubuntu-media-tree-kernel-builder/patches/ubuntu-zesty-4.10.0/extra
at master · b-rad-NDi/Ubuntu-media-tree-kernel-builder · GitHub?

This patch should be removed when the future kernel supports both tuners.

What does everyone else think?

leading_edjge · June 17, 2017 at 4:20 PM

Quote from edit4ever

Which version of LE are you running?

Sorry, I am running Raspian OS and not LibreElec. I apologize in advance for any bogus suggestion.

**edit4ever** · June 17, 2017 at 4:43 PM

OK - that explains it. It just means that something else needs to be patched in the LE version of the kernel.

I'm new to compiling and patching - so trying to sort out what needs patching is a bit of a challenge.

I can see that the patches were applied properly to the linux 4.11.4 build folder...perhaps someone with LE build knowledge can let me know if the patches actually need to be applied somewhere else - like the media_build-2017-04-17-rpi folder??

**CvH** · June 17, 2017 at 4:50 PM Official Post

we are using 4.12 in the next release so the patch needs to fit there,

0001-em28xx-Hauppauge-DualHD-DVB-ATSC-second-tuner-suppor.patch is enough to make it work ?

leading_edjge · June 17, 2017 at 4:54 PM

Quote from CvH

we are using 4.12 in the next release so the patch needs to fit there,

0001-em28xx-Hauppauge-DualHD-DVB-ATSC-second-tuner-suppor.patch is enough to make it work ?

For me, yes. It is enough to make it work. Hopefully others can confirm this will work as well.

**edit4ever** · June 17, 2017 at 5:26 PM

CvH I will test with the next build.

Also -I believe the engineer from Hauppauge will return next week and has asked to have the patch added to the the mainline. Not sure if there is additional work to be done on their end, but hopefully that happens in time for 4.12 - he may have missed that submission window.

**CvH** · June 17, 2017 at 5:35 PM Official Post

Quote from edit4ever

but hopefully that happens in time for 4.12

media_tree for 4.12 is already finished, I guess also too late for 4.13

leading_edjge · June 17, 2017 at 6:33 PM

Quote from edit4ever

I compiled the latest Leia Rpi2/3 build last night (which includes kernel 4.11.5) with all 5 of the patches and I can still only see 1 front end. Perhaps adding the other 4 patches messed something else up?

Maybe you should only use the 0001-em28xx-Hauppauge-DualHD-DVB-ATSC-second-tuner-suppor.patch. The other patches might have reverted some parts of your Linux kernel 4.11 to Linux kernel 4.10.

**edit4ever** · June 17, 2017 at 6:50 PM

Tried it - recompiled with only the 0001 patch - same result. I'm guessing I will need to rework something in the media tree patch or the patch needs to be applied somewhere else during the build.

I'll keep experimenting and see what I can come up with. At least we're getting closer!

leading_edjge · June 17, 2017 at 7:07 PM

Are you sure that the previous patches had altered your linux kernel 4.11 source code? Normally when you apply a patch that does not work, you have to reverse the patch with the following command:

Code

patch -p1 -R < path/file.patch

You might have to get a clean linux kernel 4.11 source code and start over again with 0001-em28xx-Hauppauge-DualHD-DVB-ATSC-second-tuner-suppor.patch.

How about putting 0001-em28xx-Hauppauge-DualHD-DVB-ATSC-second-tuner-suppor.patch into packages/linux/patches/ (packages/linux/patches/default?) and trying again?

Alternatively

I assume if your linux kernel 4.11 is located in packages/linux/ and the patches are located in packages/linux/patches/, you should able to run the patch command.

Code

cd linux
patch -p1 < patches/0001-em28xx-Hauppauge-DualHD-DVB-ATSC-second-tuner-suppor.patch

If the patch is successful, you should be able to compile the kernel 4.11 with the patch.